René Weteling is a Technical Lead and freelance full-stack engineer with 12 years of experience turning startup ideas into scalable SaaS products, often stepping in as interim CTO or technical coach. He combines deep hands-on knowledge in Elixir, Ruby, TypeScript and modern frontend stacks with practical architecture and team-building skills to deliver maintainable systems under real-world constraints. René has led re-architectures and platform builds (Next.js, Zenstack, Phoenix) and routinely improves legacy codebases while instituting production-ready practices and developer workflows. He balances strategic technical direction with day-to-day implementation, mentoring teams to become autonomous and sustainable. Based in North Holland, he runs his own consultancy and quietly bridges product, DevOps and engineering culture—bringing a pragmatic, common-sense approach honed across agency, telecom and media clients. An experienced teacher and interim leader, he’s as comfortable shipping features as he is defining the architecture that keeps them running.
12 years of coding experience
19 years of employment as a software developer
Havo Natuur en techniek, Havo Natuur en techniek at IJsselcollege
BSc ICT, BSc ICT at Rotterdam University of Applied Sciences
Contributions:3 PRs, 37 pushes, 5 branches in 2 years 11 months
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